Sash-lock.



No. 742,030. PATENTED OUT. 20, 1903.

' R. W. HUTGHISON.

SASH LOOK.

APPLIUATION FILED APR. 30. 1903.

N0 MODEL.

WITNESSES: IN VENTOI? AJTOHNE Y6 UNITED STATES Patented October 20, 1903.

ROBERT W. nuronisori, or MARonLLUs, Marmara.

' SASH-LOCK.

sPncmIcATIoN forming part of Letters Patent no. 742,030, dated October 20, 1903.

Application filed April so, 1903.

To all whom, it mag concern.-

Be it known that LROBERT W. HUTCHISQN, residing at Marcellus, in the county of Cass and State of Michigan, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

This invention relates to improvements in that type of sash-locks in which is included a lock-casing mounted on the sash, a key-operated bolt adapted to engage with sockets in the window-casing; and it comprehends a simple, effective, and economical construction of parts, in which the lock-bolt is especiallydesigned to be held to its turned-in or unlocked position by the key that moves it into such position and spring-actuated in its locking movement.

My invention also embodies certain details of construction and peculiar combination ofparts, all of which will hereinafter be fully described and claimed; and it particularly includes a special construction of the lock-casing whereby to conveniently support frictionrollers for facilitating the movement of the sash to its opening and closing position.

Referring now to the accompanying drawings, in which like letters and numerals indicate like parts in all the figures, Figure 1 illustrates a portion of a window sash and easing with my improvements applied. Fig. 2 is a vertical section of the same, taken practically on the line 2 2 of Fig. 3, the bolt being shown key-held to its drawn-in position in dotted lines. Fig. 3 is a perspective View of a portion of the sash and the lock devices attached. Fig. 4 is a detail view of the several parts which constitute the locked casing, and Fig.- 5 is a detail view of the lockbolt.

In the practical application of my inven-' tion the sash A at a suitable point is cut out, as at a, the face or sash end of which is open, and the outer or front face of the sash is formed withashallow seat d,which surrounds the inner and the upper and lower edges of the cutout portion a to receive the edges of the front plate b of the lock-casing B, whereby to provide a smooth and flush adjustment of the casing on the sash.

The casing B, the peculiar construction of which is best shown in Fig. 4, consists of two parts'l and 2, both stamped up from stout Serial No. 154,979. (No model.)

sheet metal, and the portion 1 has a fiat front member 6, an end member 17, which is bent inwardly at right angles to the part b, and an upwardly-extending member I), integral with the part b, the free end of which is turned outwardly to form a lifting-hook 3, the body portion of which fits a seat cut in the front face of the sash, asclearly shown in the drawings. The part 2 of the casing comprises a flat bearing 2 and an end member 2, which is provided with a stud or rivet 2 to fit the aperture b in the part b, and the said part 2 is also provided with a number of studs or rivets 2 to enter the rivet-taper tures b in the end member b. The casing member I) has an aperture b to receive the fastening-screw b adapted to engage with a threaded aperture at in the inner member 2, and the end piece b has apertures 5 for the wood-screws 6, thatsecure the casing B to the window-sash. The member I) is also provided with a keyhole b and the piece 2 has an aperture 2 'in register with the hole 19 to receive the key-heel 7, as shown.

8 designates the locking-bolt, which, as best shown in Fig. 5, comprises an end member 5 adapted to engage within one of a series of metal-faced sockets 9 9 in the windowcasing and which rides in an aperture 8 in the endportion b of the casing 1. It also has a reduced shank 8 which slides in an aperture 8" in the casing member 2 and upon which is disposed the spring 10, that forces the bolt outward to its locking position. The lock-bolt also includes a tumbler or key-engaged block 8, which has a short pendent shoulder 8 and an opposing curved tang 8, which projects down in a plane below the heel portion of the keyhole in the front plate I), and the said tang serves the double function of providing for shifting the bolt to its inner or unlocked position by turning the key in the required direction and as a lock or detent for automatically holding the bolt to its inner position when the key wing w is turned to the horizontal position, (shown in Fig. 2,) and thereby admit of removing the finger-hold on the key after the latter has been turned to the position stated and leave the hand free to raise the sash by pulling up on the lift member 3,before referred to. The

spring 10 serves to shift the bolt to the locking position when the key is'turned to the position shown in full lines on Fig. 2. It will be noticed, however, that by reason of the peculiar formation of the block portion of the bolt should the spring break or bind the bolt can be readily shifted in either di-, rection by a proper key movement.

To prevent the metal casing binding against the opposing window-casing face, I; provide friction-rollers 11 11, one above and one below the inner face b of the casing, which project sufficiently beyond the plane of the sliding face of the sash (see Fig. 2) to reduce the danger of the sash binding on the casing to the minimum. To facilitate the attachment of the friction-rollers in an economical and a stable manner, they are seated in recesses a formedin the sash edge, and they have their studs or pintles 11 mounted in bearings b 19 integrally formed With the body portion b of the casing-section 1, as clearly seen in Fig. 4, from which it will be noticed the bearings are in the nature of narrow extensions the ends of which are turned inward to form bearing-eyes to receive the stud or pintle ends of the rollers. If desired, additional rollers 11 may be provided at the upper and at the lower ends of both edges: of the sash, as indicated in dotted lines in: Fig. 2.

From the foregoing, taken in connection with the accompanying drawings, it is believed the advantages of my invention will. be readily understood.

The construction of the several parts is such that the said parts can be very economic-Q ally made and readily applied to the ordinary; window-sash without the aid of more than; ordinary skill.

I am aware that sash-locks embodying the; generic features shownthat is, a casing, a-f spring latch-bolt key-operated-haveheretofore been provided. My invention differen-E tiates, so far as I know, from what has here-q tofore been provided in this art in the peculiar correlation of the bolt, the key, and the? casing, the special construction of the casing, 5 and particularly forming the latter with ani integral lift member and integral bearing" members for supporting the upper and lower friction-rollers in the manner hereinbefore described.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a look as described, in combination with the sash and the casing, the latter having one or more bolt-sockets; of a locking mechanism comprising a casing consisting of an outer section 1 and an inner section 2, said sections having interlocking means, the section 1 comprising a front plate I) and a side member I), projected at right angles to the front plate, said front plate having an integral lift or pull extension and a spring and key-actuated slide-bolt mounted within the casing, substantially as shown and described.

2. As an improvement in sockets of the character described, the combination with the sash and the sash-casing; of a lock-casing mounted on the sash and including a front plate I) and side plate I) for opposing the sashcasing face that opposes the sash edge, said plate I) having integral extensions at the upper and lower ends bent to form bearings, rollers mounted in said bearings, and a keyactuated locking-bolt mounted within the lock-casing, as set forth.

3. The hereinbefore-described improvement in sash-locks, comprising in combination with the sash having a recess and the sash-casing having bolt-sockets; of the lockcasing B, consisting of an outer section land an inner section 2; the two sections having interlocking members, the outer section 1 including a front plate I) and a side plate I), the latter having upper and lower extensions b Whose ends terminate in bearing edges,

the plate b having an extension I) curved to form a lift or pull portion, the bolt 8 held within the casing and spring-actuated, all being arranged substantially as shown and for the purposes described.

ROBERT W. .HUTCHISON.

\Vitnesses:

. E. SHILLITO,

J. L. HoovER. 

